“新赫罗夫斯卡2号”矿山的环境安全水位的理由，以保护邻近地区免受洪水

Collection of Research Papers of the National Mining University Pub Date : 2022-03-01 DOI:10.33271/crpnmu/68.058

D. Rudakov, I. Sadovenko, O. Inkin, N. Dereviahina

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引用次数: 0

摘要

目的。对“新赫罗迪夫斯卡2号”矿井关闭和地热系统运行期间水动力条件变化进行预测性估计，并评价能够防止矿井附近地区淹水的排水系统所需的能力。方法。矿井总涌水量利用地质过滤和经验依赖关系的分析关系计算，同时考虑了前几期矿井水位的上升速度、与邻近矿井D.S. Korotchenko和“Novohrodivska 1-3”矿井的水动力联系、采空区体积和现有地质构造构造断层。发现。根据不同的计算方法，“新罗夫夫斯卡2号”矿井的总涌水量根据邻近矿井的涌水量、30 ~ 50 mm/年的入渗量和上层含水层的涌水量在2000 ~ 2200 m 3 /d之间变化。为了在闭井和地热系统运行期间保持+185 m的水动力和环境安全水平，这些流入水应由排水系统完全抽出并排放到矿井集水区以外的水文网络中。创意。建议的新的综合评价闭矿期间总涌水量的方法充分考虑了该地区的水动力条件、地质和水文地质构造以及各种自然和技术因素的影响。现实意义。在计算“新赫罗迪夫斯卡2号”矿井的涌水量时获得的数据将用于估计排水系统所需的能力，以便在邻近矿井的地区防止洪水和避免不利的物理和地质现象。此外，计算出的入水量可望用于确定地热系统的技术和经济指标。

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Justification of environmentally safe water levelin “Novohrodivska 2” minefor protectingadjacent areasfrom flooding

Purpose. Predictive estimation of changes in hydrodynamic conditions of “Novohrodivska 2” mine during its closure and operation of geothermal systems with evaluation of a required capacity of drainage systems capable to prevent flooding in the areas adjacent to the mine. Methods. The total mine water inflow was calculated using the analytical relations of geofiltration and empirical dependencies while considering the rate of mine water level increase during the previ-ous stages of flooding and hydrodynamic connections with mine workings of a neighboring mine named after D.S. Korotchenko and “Novohrodivska 1-3” mine as well as the volume of mined out space and existing geological and structural tectonic faults. Findings. The total water inflow to the “Novohrodivska 2” mine calculated according to different approaches varies in a range of 2000–2200 m 3 /day depending on the inflow from neighboring mines, infiltration withing the range of 30 to 50 mm/year and the inflow from the upper aquifer. This inflow should be completely pumped out by drainage systems and discharged into the hydrographic network beyond the mine catchment area in order to maintain the hydrodynamically and environmentally safe level of +185 m during mine closure and the operation of geothermal systems. Originality. The suggested new comprehensive approach to evaluate the total inflow during mine closure allows adequate consideration of hydrodynamic conditions in this area, geological and hy-drogeological structure and the impact of various natural and technogenic factors. Practical significance. The data obtained during the calculations of water inflow to the “Novohrodivska 2” mine will be used in estimation of a required capacity of drainage systems, which allow prevention of flooding and avoiding adverse physical and geological phenomena in the areas adjacent to the mine. In addition, the calculated values of water inflow are expected to be used in determining technological and economic indicators of geothermal systems.

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Collection of Research Papers of the National Mining University

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